<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>极简登录页</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <div class="a">
    <div class="b"></div>
    <div class="c">
      <div class="d">
        <h1><a href="#">Login/Register</a></h1>
        <input type="text" class="e" placeholder="USER NAME">
        <input type="text" class="e" placeholder="ACCOUNT">
        <input type="text" class="e" placeholder="PASSWORD">
        <a href="#" class="f">Forget the password?</a>
        <button class="g">Login</button>
      </div>
    </div>
  </div>
</body>
</html>